Formed 31 Dec 1806, 408 square miles
Parent county: Trumbull
Evolution of county from date of formation until it assumed its final form
1 Mar 1806: Erected and organized
7 Jun 1808: Part of Ashtabula attached temporarily until organization of Ashtabula. Cuyahoga attached temporarily until organization of Cuyahoga
7 Feb 1809: Part of Huron attached temporarily until organization of Huron
1 May 1810: Diminished y organization of Cuyahoga. Part of Huron attached to Cuyahoga temporarily until organization of Huron. Part of Geauga attached to Cuyahoga temporarily until organization of Huron.
6 Mar 1840: Part of Lake attached temporarily until organization of Lake20 Mar 1840: Diminished by organization of Lake
29 Jan 1841: Part attached to Cuyahoga and part of Cuyahoga attached
11 Jan 1843: Part attached to Cuyahoga
In 1807, the county seat was in New Market, but was moved the following year to Chardon.
Federal Population schedules extant from 1820-1940. (1890 missing)
1820 Manufacturers; 1850 Agricultural; 1850 Industry; 1860 Agricultural; 1860 Mortality; 1870 Agricultural; 1870 Industry; 1880 Industry; 1880 Defective, Dependent, and Delinquent; 1880 Mortality
Auburn, Bainbridge, Burton, Chardon, Chester, Claridon, Hambden, Huntsburg, Middlefield, Montville, Munson, Newbury, Parkman, Russell, Thompson, Troy
Jana Broglin, CG, OGSF